photometry

[ foh-tom-i-tree ]

noun

1. the measurement of the intensity of light or of relative illuminating power.
2. the science dealing with such measurements.

photometry

/ ˌfəʊtəˈmɛtrɪk; fəʊˈtɒmɪtrɪ /

noun

1. the measurement of the intensity of light
2. the branch of physics concerned with such measurements

photometry

/ fō-tŏm′ĭ-trē /

1. The measurement of the intensity, brightness, or other properties of light.
2. Also called photometrics
3. See also luminous intensity

Derived Forms

• ˌphotoˈmetrically, adverb
• phoˈtometrist, noun
• photometric, adjective

Other Words From

• pho·to·met·ric [foh-t, uh, -, me, -trik], photo·metri·cal adjective
• pho·tome·trist pho·to·me·tri·cian [foh-t, uh, -me-, trish, -, uh, n], noun

Word History and Origins

Origin of photometry¹

From the New Latin word photometria, dating back to 1815–25. See photo-, -metry

Example Sentences

Considerations drawn from photometry were also lost sight of, because that art was still undeveloped.

From Project Gutenberg

Its precedence over its rivals Vega and Capella, long in dispute, has been settled by the Harvard photometry.

From Project Gutenberg

The embarrassing subject of photographic photometry has also been attacked by Professor Pickering.

From Project Gutenberg

The branch of astronomy (or physics) which deals with intensities of radiation is called photometry.

From Project Gutenberg

Then came astrophysics, including photography, spectroscopy and photometry.

From Project Gutenberg